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Messages - Josh

Pages: [1] 2 3 ... 271
1
SDR - Software Defined Radio / Re: RPi Ethernet question
« on: July 01, 2020, 2018 UTC »
Leases, especially of the dhcp kind, are messy.

2
Propagation / Re: Propagation Path or Equipment?
« on: July 01, 2020, 2017 UTC »
Not much can beat a vertical antenna for dx. Verticals offer an improved low angle of reception over a horizontal antenna.

3
dust scatter mode!

4
Utility / Re: 11175 callsigns
« on: June 26, 2020, 1730 UTC »

5
Utility / Re: 11175 USB
« on: June 26, 2020, 1730 UTC »
For the newbs;
BANK LOAN would be an E6 TACAMO (USN) or E4 NIGHTWATCH (USAF) checking into the NCA (National Command Authority) net on HF, they will also have a parallel network running on MILSTAR (EHF/laser satellite, use of this sat will be the obvious when the ac is offshore any real distance as some flights venture out off the coasts) and/or ground/air UHF MUX.

TWIN BED would be the current callsign of the corresponding ground comms unit supporting NCA flights via sat, UHF MUX and HF.

Some of these birds can take control of entire missile wings to launch ICBMs if needed, these flights will have to be within UHF range of the wings in question to exert control. Otherwise the flights orbit a loop (to keep that miles long trailing wire VLF antenna as vertical as possible) near a string of GEPs (Ground Entry Points) that have UHF MUX duplex capabilities including a T1 or better innernet line. The flights that venture out over the oceans will be using HF, MILSTAR, and as always VLF to the SSBNs patrolling the world.

:D
     Josh, do you have a source one can use for identifying the various call signs?  For example, Drysands is heard this morning at 17:00 UTC.   Thanks!    73,  Walt in Victoria, BC

The more or less static callsigns can be found here;
http://www.udxf.nl/MCL.pdf

The call DRY SANDS is likely of limited duration, but they can be reused a few months/weeks down the road, seen it before. These calls will typically be used by stations of the TACAMO and NIGHTWATCH programs, ie NCA assets.

6
Utility / Re: 11175 USB
« on: June 26, 2020, 1726 UTC »
Any idea why the Skyking messages have ceased on HF?
There have been around 3 known Skyking messages for all of this year.


There have been notedly less skykings of late and that is actually a good thing.
I expect these flights to be done more with unmanned assets than ever before, and those that are manned will likely be kept far enough away from their elint targets to not trigger a reaction from said target. Reason being, the cia guy what planned eliminating that Iranian general in Iraq was allegedly shot down in a elint flight some months ago, I fully expected war over that one but so far little mention, relatively speaking, has been made in the news. If you were monitoring HFGCS when this took place, you might have caught the response to a skyking.

https://www.theguardian.com/world/2020/jan/27/afghanistan-taliban-claim-they-shot-down-us-air-force-plane-crash

7
Other / Re: 17450 WhatzIT?
« on: June 23, 2020, 1750 UTC »
SKYNET!?!?!?!

8
Utility / Re: 11175 USB
« on: June 23, 2020, 1747 UTC »
For the newbs;
BANK LOAN would be an E6 TACAMO (USN) or E4 NIGHTWATCH (USAF) checking into the NCA (National Command Authority) net on HF, they will also have a parallel network running on MILSTAR (EHF/laser satellite, use of this sat will be the obvious when the ac is offshore any real distance as some flights venture out off the coasts) and/or ground/air UHF MUX.

TWIN BED would be the current callsign of the corresponding ground comms unit supporting NCA flights via sat, UHF MUX and HF.

Some of these birds can take control of entire missile wings to launch ICBMs if needed, these flights will have to be within UHF range of the wings in question to exert control. Otherwise the flights orbit a loop (to keep that miles long trailing wire VLF antenna as vertical as possible) near a string of GEPs (Ground Entry Points) that have UHF MUX duplex capabilities including a T1 or better innernet line. The flights that venture out over the oceans will be using HF, MILSTAR, and as always VLF to the SSBNs patrolling the world.

:D

9
HF Mystery Signals / Re: 9977 kHz at ~6kHz wide Data?
« on: June 19, 2020, 1732 UTC »
To me looks like psk modulated carriers, if the entire sig was captured could take a closer look at it.

10
FM DX Loggings / Re: KOSU, 91.7 Oklahoma (heard in Dailey, WV)
« on: June 19, 2020, 1729 UTC »
The ducting has been crazy lately. Sometimes the locals are reinforced and boom in on the fringes, then dx moves in, fun fm dx time of the year for sure.

11
U.S. federal, state and local government aircraft performing sensitive operations are now permitted to fly with their installed automatic dependent surveillance broadcast (ADS-B) position reporting electronics turned off, according to a new rule published by the Federal Aviation Administration (FAA) Thursday.
https://www.aviationtoday.com/2019/07/23/new-rule-allows-military-aircraft-turn-ads-b-transmissions-off/

Building a Passive Radar System with RTL-SDR Dongles
https://www.rtl-sdr.com/building-a-passive-radar-system-with-an-rtl-sdr/

12
Think the fedz and mil are going to the adsb that does not display what type of ac or agency is operating said ac to unauthorised monitors.

13
Utility / Re: CIS Navy on HF
« on: June 13, 2020, 1944 UTC »
Tony posted this catch and summary at his page here;
http://i56578-swl.blogspot.com/2020/06/50bd500-fsk-likely-cis-govmil.html

50Bd/500 FSK (likely CIS Gov/Mil)

Ran the linked audio file thru K500 to see what it said and it triggered the KG84C parser;

[2020-06-13 19:38:59] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:00]
[2020-06-13 19:39:00]
[2020-06-13 19:39:00] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:01]
[2020-06-13 19:39:01]
[2020-06-13 19:39:01] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:03]
[2020-06-13 19:39:03]
[2020-06-13 19:39:03] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:04]
[2020-06-13 19:39:04]
[2020-06-13 19:39:04] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:05]
[2020-06-13 19:39:05]
[2020-06-13 19:39:05] Detected KG-84C SYNC with 93% confidence
[2020-06-13 19:39:06]
[2020-06-13 19:39:06]
[2020-06-13 19:39:06] Detected KG-84C SYNC with 92% confidence
[2020-06-13 19:39:08]
[2020-06-13 19:39:08]
[2020-06-13 19:39:08] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:09]
[2020-06-13 19:39:09]
[2020-06-13 19:39:09] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:10]
[2020-06-13 19:39:10]
[2020-06-13 19:39:10] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:11]
[2020-06-13 19:39:11]
[2020-06-13 19:39:11] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:13]
[2020-06-13 19:39:13]
[2020-06-13 19:39:13] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:14]
[2020-06-13 19:39:14]
[2020-06-13 19:39:14] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:15]
[2020-06-13 19:39:15]
[2020-06-13 19:39:15] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:17]
[2020-06-13 19:39:17]
[2020-06-13 19:39:17] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:18]
[2020-06-13 19:39:18]
[2020-06-13 19:39:18] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:19]
[2020-06-13 19:39:19]
[2020-06-13 19:39:19] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:20]
[2020-06-13 19:39:20]
[2020-06-13 19:39:20] Detected KG-84C SYNC with 100% confidence
[2020-06-13 19:39:22]
[2020-06-13 19:39:22]
[2020-06-13 19:39:22] Detected KG-84C SYNC with 90% confidence
[2020-06-13 19:39:32] Initialization vectors: 4443CF0683C041C0 43C3C3C3C3C3C3C3
[2020-06-13 19:39:33] C3C3C3C3F0F0C3C3C3C3C3C3C3C3C3C3C3C3C3C3F0F0C3C3C3C3C3C3C3C3C3C3C3C3C3C3F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0F0FFFFFFFFFFFFFFFF
[2020-06-13 19:39:44] End of message (idle pattern)


Mebbe not cis nav but fun anyway.

14
You're driving along enjoying the ride in your chick-magnet/road-sofa 89 K car, beige with white snowflake wheels and burgundy interior appointments, the am stereo emitting dulcet tones.

Suddenly bedlam! 

The phase changes and the sound starts rotating slowly one way around the cabin then the other as the signal undergoes fading!

15
Got my ticket the same day as the ct. Worked coast to coast 6m ssb with 3 watts, neat stuff. Otherwise the band was dead save for the few locals.

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